9(3x-2y)²-(x-y)²,因式分解
问题描述:
9(3x-2y)²-(x-y)²,因式分解
答
9(3x-2y)²-(x-y)²
=[3(3x-2y)]²-(x-y)²
=[3(3x-2y)+(x-y)][3(3x-2y)-(x-y)]
=(10x-7y)(8x-5y)
明白请采纳,
有新问题请求助,